EP0279444A3 - High-speed digital image processing apparatus - Google Patents

High-speed digital image processing apparatus Download PDF

Info

Publication number
EP0279444A3
EP0279444A3 EP19880102383 EP88102383A EP0279444A3 EP 0279444 A3 EP0279444 A3 EP 0279444A3 EP 19880102383 EP19880102383 EP 19880102383 EP 88102383 A EP88102383 A EP 88102383A EP 0279444 A3 EP0279444 A3 EP 0279444A3
Authority
EP
European Patent Office
Prior art keywords
pixel data
image processing
filtering
row
data stream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19880102383
Other languages
German (de)
French (fr)
Other versions
EP0279444A2 (en
Inventor
Kenji Osaka Works Of Okamoto
Yasushi Osaka Works Of Kida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of EP0279444A2 publication Critical patent/EP0279444A2/en
Publication of EP0279444A3 publication Critical patent/EP0279444A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/136—Segmentation; Edge detection involving thresholding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0229—De-interlacing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/399—Control of the bit-mapped memory using two or more bit-mapped memories, the operations of which are switched in time, e.g. ping-pong buffers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Graphics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Image Processing (AREA)
  • Television Systems (AREA)
  • Image Analysis (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Analogue/Digital Conversion (AREA)
  • Image Input (AREA)

Abstract

An image processing apparatus is provided which is capable of real time image processing, especially filtering, without generating a delay in the frame memory.
In the circuit for filtering, the analogue video signals are digitally converted to obtain a time sequential digital pixel data stream and the digital pixel data stream is subjected to the filtering operation based on the pattern of constants of a p row q column filter using p row q column filter using p basic filter circuits (100) cascade-connected with each other, each of which carries out filtering for 1 row q column pixel data.
The basic filter circuit (100) is constituted by a circuit incorporating delay circuits (40, 41, 42), multipliers (20, 21, 22) and adders (30, 31, 32).
The interlace type digital video signals are converted into the noninterlace type pixel data stream by a structure in which two frame memories (85a and 85b) are alternately switched at frame period and the pixel data are written in every other lines in one frame memory and the pixel data is read in noninterlace manner from the other frame memory.
EP19880102383 1987-02-20 1988-02-18 High-speed digital image processing apparatus Withdrawn EP0279444A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP38765/87 1987-02-20
JP62038765A JPS63205778A (en) 1987-02-20 1987-02-20 Video signal digitizing circuit

Publications (2)

Publication Number Publication Date
EP0279444A2 EP0279444A2 (en) 1988-08-24
EP0279444A3 true EP0279444A3 (en) 1991-11-06

Family

ID=12534380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880102383 Withdrawn EP0279444A3 (en) 1987-02-20 1988-02-18 High-speed digital image processing apparatus

Country Status (4)

Country Link
US (1) US4885787A (en)
EP (1) EP0279444A3 (en)
JP (1) JPS63205778A (en)
CA (1) CA1331217C (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381064A3 (en) * 1989-01-30 1992-03-25 Honeywell Inc. Addressing mechanism for accessing multiple neighboring locations from full field memory in parallel
US5481737A (en) * 1989-05-30 1996-01-02 Fujitsu Limited Image data quantizing circuit with a memory for storing unquantized and quantized image data
JP2853216B2 (en) * 1989-11-09 1999-02-03 日本電気株式会社 Solid-state imaging device
US5374954A (en) * 1990-10-11 1994-12-20 Harry E. Mowry Video system for producing video image simulating the appearance of motion picture or other photographic film
JP2956213B2 (en) * 1990-11-30 1999-10-04 ソニー株式会社 Image processing device
JPH05308599A (en) * 1991-12-30 1993-11-19 Samsung Electron Co Ltd Printing method and printing device suitable for the method
US5379065A (en) * 1992-06-22 1995-01-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Programmable hyperspectral image mapper with on-array processing
US5416799A (en) * 1992-08-10 1995-05-16 Stanford Telecommunications, Inc. Dynamically adaptive equalizer system and method
FR2719928B1 (en) * 1994-05-10 1996-08-02 Essilor Int Method for transforming a video image into an image for a display matrix.
US5696849A (en) * 1995-04-07 1997-12-09 Tektronix, Inc. Cascaded anti-aliasing filter control for sampled images
US5742274A (en) * 1995-10-02 1998-04-21 Pixelvision Inc. Video interface system utilizing reduced frequency video signal processing
MY117289A (en) * 1996-01-17 2004-06-30 Sharp Kk Image data interpolating apparatus
JPH10174064A (en) * 1996-12-06 1998-06-26 Sanyo Electric Co Ltd Digital broadcast system
KR100253304B1 (en) * 1997-07-29 2000-04-15 김영환 A letter-box filtering circuit and method
US6047091A (en) * 1998-04-01 2000-04-04 Hewlett-Packard Company Low latency architecture for spatial filtration
US6995793B1 (en) * 2000-11-14 2006-02-07 Eastman Kodak Company Video tap for a digital motion camera that simulates the look of post processing
US20040091173A1 (en) * 2002-07-17 2004-05-13 Hiroshi Akimoto Method, apparatus and system for the spatial interpolation of color images and video sequences in real time
JP5051673B2 (en) * 2010-11-29 2012-10-17 Ｎｅｃパーソナルコンピュータ株式会社 Rendering method and rendering apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395699A (en) * 1979-09-10 1983-07-26 Environmental Research Institute Of Michigan Method and apparatus for pattern recognition and detection
US4454590A (en) * 1981-10-30 1984-06-12 The United States Of America As Represented By The Secretary Of The Air Force Programmable signal processing device
EP0148766A2 (en) * 1984-01-04 1985-07-17 Itek Corporation Real time single frame memory for converting video interlaced formats
EP0165045A2 (en) * 1984-06-14 1985-12-18 Ncr Canada Ltd - Ncr Canada Ltee Document scanning system for enhancing information

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816380B2 (en) * 1975-03-25 1983-03-31 三菱電機株式会社 Koukaizoud TV Jiyoungji Yuzuki
US4012628A (en) * 1975-08-15 1977-03-15 Bell Telephone Laboratories, Incorporated Filter with a reduced number of shift register taps
EP0086570B1 (en) * 1982-02-15 1990-03-14 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Digital signal processor
US4623923A (en) * 1983-03-14 1986-11-18 Honeywell Inc. Real-time video image enhancement system
GB8315373D0 (en) * 1983-06-03 1983-07-06 Indep Broadcasting Authority Downsampling and prefilter implementation in television systems
JP2538555B2 (en) * 1985-07-16 1996-09-25 富士写真フイルム株式会社 Image hard copy making device
US4785411A (en) * 1986-08-29 1988-11-15 Motorola, Inc. Cascade filter structure with time overlapped partial addition operations and programmable tap length
GB2197766B (en) * 1986-11-17 1990-07-25 Sony Corp Two-dimensional finite impulse response filter arrangements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395699A (en) * 1979-09-10 1983-07-26 Environmental Research Institute Of Michigan Method and apparatus for pattern recognition and detection
US4454590A (en) * 1981-10-30 1984-06-12 The United States Of America As Represented By The Secretary Of The Air Force Programmable signal processing device
EP0148766A2 (en) * 1984-01-04 1985-07-17 Itek Corporation Real time single frame memory for converting video interlaced formats
EP0165045A2 (en) * 1984-06-14 1985-12-18 Ncr Canada Ltd - Ncr Canada Ltee Document scanning system for enhancing information

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
N.T.I.S. Technical Notes, No. 7, part B, July 1986, page 789, Springfield, Virginia, US; "Convolver for pipelined-image processor". *

Also Published As

Publication number Publication date
JPS63205778A (en) 1988-08-25
EP0279444A2 (en) 1988-08-24
US4885787A (en) 1989-12-05
CA1331217C (en) 1994-08-02

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